Warpgate: SSO CSRF -- State Token Not Validated on Return
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-352.
Summary
Warpgate is an open source SSH, HTTPS and MySQL bastion host for Linux. Prior to 0.23.3, the SSO flow does not validate the state parameter, which makes it possible for an attacker to trick a user into logging into the attacker's account, possibly convincing them to perform sensitive actions on the attacker's account (such as writing sensitive data to the attacker's SSH target, or logging into an HTTP target that the attacker set up). This vulnerability is fixed in 0.23.3.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA warpgate (warp-tech) Fixed in 0.23.3
Timeline
- 2026-10-02 Threatist record created from CVE-2026-44347
More warp-tech Warpgate vulnerabilities
- TI-2023-18898 User login confusion with SSO in warpgate CVSS 3.1HIGH 8.8
- TI-2026-30510 Russh: Pre-auth DoS via unbounded allocation in keyboard-interactive auth CVSS 3.1HIGH 7.5
- TI-2024-29059 Russh has an OOM Denial of Service due to allocation of untrusted amount CVSS 3.1HIGH 7.5
- TI-2025-34558 Russh is missing an overflow check during channel windows adjust CVSS 3.1MEDIUM 6.5
- TI-2023-26551 User authorization bug leading to privilege escalation in warpgate CVSS 3.1HIGH 8.8
- TI-2023-23385 SSH key password bypassed in warpgate CVSS 3.1HIGH 8.1
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences